Maintenance fees coming due

Watts Regulator Co.

22 maintenance fees come due in the 12 months from Nov 15, 2026, the next on Nov 16, 2026. Unpaid by May 17, 2027, that one lapses early.

A maintenance fee does not end a patent on its due date. It falls due at 3.5, 7.5 and 11.5 years from grant, and the patent lapses only if the fee is still unpaid at the end of the six month grace period that follows.

Patent	Title	Holder	Status	Fee due	Lapses if unpaid	Expires	Confidence
US 11,650,118	Differential Pressure Sensor with Magnetic Dial Watts Regulator Co. In force Fee due Nov 16, 2026 Lapses if unpaid May 17, 2027 Term ends Apr 9, 2041 · High confidence	Watts Regulator Co.	In force	Nov 16, 2026	May 17, 2027	Term ends Apr 9, 2041	High confidence
US 11,674,609	Backflow Prevention Assembly with Telescoping Bias Assembly and Reversible Valve Member Watts Regulator Co. In force Fee due Dec 13, 2026 Lapses if unpaid Jun 14, 2027 Term ends Aug 16, 2041 · High confidence	Watts Regulator Co.	In force	Dec 13, 2026	Jun 14, 2027	Term ends Aug 16, 2041	High confidence
US 11,674,711	HVAC Controller Assemblies Including Air Flow Intrusion Barriers Watts Regulator Co. In force Fee due Dec 13, 2026 Lapses if unpaid Jun 14, 2027 Term ends Jun 10, 2041 · High confidence	Watts Regulator Co.	In force	Dec 13, 2026	Jun 14, 2027	Term ends Jun 10, 2041	High confidence
US 11,703,140	Relief Valve with Testing Lockout Watts Regulator Co. In force Fee due Jan 18, 2027 Lapses if unpaid Jul 19, 2027 Term ends Mar 11, 2040 · High confidence	Watts Regulator Co.	In force	Jan 18, 2027	Jul 19, 2027	Term ends Mar 11, 2040	High confidence
US 11,703,364	Fluid Discharge Event Detector Watts Regulator Co. In force Fee due Jan 18, 2027 Lapses if unpaid Jul 19, 2027 Term ends Nov 4, 2039 · High confidence	Watts Regulator Co.	In force	Jan 18, 2027	Jul 19, 2027	Term ends Nov 4, 2039	High confidence
US 10,373,471	Leak Detector Watts Regulator Co. In force Fee due Feb 6, 2027 Lapses if unpaid Aug 6, 2027 Term ends Mar 22, 2037 · High confidence	Watts Regulator Co.	In force	Feb 6, 2027	Aug 6, 2027	Term ends Mar 22, 2037	High confidence
US 11,719,352	Check Cover Assemblies for Backflow Prevention Assemblies with Integrated Test Cock Protection Shroud Watts Regulator Co. In force Fee due Feb 8, 2027 Lapses if unpaid Aug 9, 2027 Term ends Aug 12, 2041 · High confidence	Watts Regulator Co.	In force	Feb 8, 2027	Aug 9, 2027	Term ends Aug 12, 2041	High confidence
US 11,725,781	Pressure Relief Cover Assembly Watts Regulator Co. In force Fee due Feb 15, 2027 Lapses if unpaid Aug 16, 2027 Term ends Dec 7, 2041 · High confidence	Watts Regulator Co.	In force	Feb 15, 2027	Aug 16, 2027	Term ends Dec 7, 2041	High confidence
US 9,114,365	Shut Off Valve for a Reverse Osmosis Water Filtration System Watts Regulator Co. In force Fee due Feb 25, 2027 Lapses if unpaid Aug 25, 2027 Term ends Apr 28, 2031 · High confidence	Watts Regulator Co.	In force	Feb 25, 2027	Aug 25, 2027	Term ends Apr 28, 2031	High confidence
US 11,739,507	Test Cock with Integrated Extraction Tool Watts Regulator Co. In force Fee due Feb 28, 2027 Lapses if unpaid Aug 30, 2027 Term ends Jun 28, 2041 · High confidence	Watts Regulator Co.	In force	Feb 28, 2027	Aug 30, 2027	Term ends Jun 28, 2041	High confidence
12 more maintenance fees coming due in the 12 months from Nov 15, 2026 · Pro

10 of 22 patents shown. Soonest fee due date first, then patent number.

Pro members see every patent with a maintenance fee coming due: number, title, status, the due date, and the date it lapses if the fee goes unpaid through the grace period.

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Computed patent terms end on the dates shown. Related patents and pending applications may cover overlapping subject matter.